411 REFERENCE · Wiktionary
French flap
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Noun
en chiefly in plural A publishing format of a paperback book with folded flyleaves, or either of the two flyleaves so folded.
en 13 February 2005 w:Nicholas Blincoe The Telegraph The one format no one ever forgets is known as "French flaps", a paperback edition with folded flyleafs. It is attractive, but so expensive it is almost never approved.
en 13 February 2013 Janine Barchas The New York Times That same text also appeared in a “couture inspired” jacket, complete with deckle edges and French flaps to use as bookmarks.
See also
en gatefold
en Books France